TRANSACTIONS OF SECTION C. 



737 



and 14 of hia map (1856), or the 'Ecca,' 'Koonap,' and part of the 'Beaufort' 

 Beds of Jones (1867). The series No. 7, horizontal and unconformable on the 

 Ecca Beds at the Oamdehoo and elsewhere, retains the name of Karoo Sandstones ; 

 and after a width of about 40 miles is conformably surmounted by a set of some- 

 what similar Beds (8) in the Stormberg ; and thus No. 7 should be regarded as the 

 Lower, and No. 8 the Upper Karoo Sandstones. The latter end off northwards in 

 the Draakensberg, Natal, Orange-Free-State, the Transvaal, and Zululand, with the 

 still horizontal Cave Sandstone and associated beds. The Lower Karoo Sandstones 



the Karoo Formation,' by G. W. Stow. These" die out northward against the old 

 rocks of Griqualand-West and the Transvaal. They contain Glacial Conglomerates 

 in their lowest (earliest) beds, in Griqualand-West, just as the Ecca series has its 

 great Glacial Conglomerate (the Dioyka Conglomerate in No. 6) in its lowest 

 portion. As the Stormberg Beds (8) he upon the Olive or Kimberley Shales (7*) in 

 the Orange-Free-State, the Lower Karoo Sandstones (7) must die out northwards. 

 The Kimberley Shales contain some Reptilian bones and plant remains, and some coal 

 on the Vaal ; the Karoo Sandstones are rich with Dicynodont and other Reptilian 

 bones, and have some Fish remains ; and their upper portion (Stormberg) contains 

 Ferns and Cycadeous leaves, and some seams of coal. A fossil mammal also has been 

 found in this series. Throughout its range the Karoo Series is traversed with 

 igneous dykes. 



Limestones and sandstones (9) with fossils of nearly pure Jurassic, but with 

 some of Cretaceous type, occur unconformably in the Eastern Province. Their 

 fossil Flora is like that of the Stormberg Beds. Cretaceous strata (10) are known 

 -on the Natal coast; and Tertiary and post-Tertiary deposits (11) form several 

 patches on the East, South, and West coasts. 



The South-African Formations. 

 11. Tertiary and Post-Tertiary, 100' ? 



*~^~~~~n~x^^~^( Unconformable on several different rocks.) 

 .10. Cretaceous. 



••(Unconformable on Carboniferous ?) 



d 

 o 



9. Jurassic. 



03 



9 (Trigonia Beds 



o Wood-bed 



„, i Saliferous Beds 



-400' 



t» Zwartkop Sandstone' 

 jq \Enon Conglomerate, 300'. 





'Iriassic. 



73 



a> 

 PQ 



o 

 o 



u 



(8. Upper. 



7. Lower. 



Carboniferous ? 



1884. 



(Unconformable on Devonian and other old 

 rocks in Albany.) 



(Cave Sandstone, 150' 



j Red Beds, 600' 



( Stormberg Beds, 1,000'. 



( Sandstones and Shales, 5,000' 



- 7*. Kimberley or Olive Shales and Con- 



( glomerates, 2,300. 



(Unconformable on Ecca Beds in the South, 

 and on the old Vaal and Kaap series in 

 the North.) 



f Upper Ecca Beds, 2,700' 

 6. Ecca Beds, j Dwyka Conglomerate, 500' 



(Lower Ecca Beds, 800'. 

 5. Witteberg and Zuurberg Quartzites, 1,000'? 

 U. Table-Mountain Sandstone, 4,000'. 



3b 



